A large fire destroyed a two-story building on Butler Street and damaged six other nearby structures on Sunday afternoon.

Seven families or 27 people were displaced. The American Red Cross is assisting the families with temporary lodging, food, and clothing.

Firefighters responded to the fire at 166 Butler Street at around 2:18 p.m. Firefighters observed heavy smoke and found the structure fully involved, officials said.

Flames damaged 164 Butler Street, 168 Butler Street, 162 Butler Street, 165 Butler Street, and 169 Butler Street, said deputy fire chief Donn Langevin.

Sidings on the two structures across the street from the main fire buildings melted. 164 Butler Street will have to be demolished and 168 Butler Street sustained extensive damage. 162 Butler Street sustained fire damage to the second and third floors.

A rear structure, 456 River Street, sustained roof damage.

Langevin said a total of seven structures were affected by the fire. He said the main fire building, 166 Butler Street, collapsed.

Fire quickly reached fourth alarm.

No civilian injuries were reported. All residents were able to get out of the buildings, said the deputy chief.

A firefighter was taken to the hospital due to heat exhaustion. He was treated and released.

The fire is still not considered to be under control.

Passaic County Prosecutor’s Office was notified about the fire. Cause of the fire remains under investigation.

This report was updated with additional information at 11 a.m. on Monday.